CN114144957A - 一种无线充电电路、无线充电方法、设备和*** - Google Patents
一种无线充电电路、无线充电方法、设备和*** Download PDFInfo
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- CN114144957A CN114144957A CN202080051492.0A CN202080051492A CN114144957A CN 114144957 A CN114144957 A CN 114144957A CN 202080051492 A CN202080051492 A CN 202080051492A CN 114144957 A CN114144957 A CN 114144957A
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- 238000000034 method Methods 0.000 title claims description 72
- 230000010355 oscillation Effects 0.000 claims abstract description 137
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- 238000005259 measurement Methods 0.000 description 16
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- 230000006870 function Effects 0.000 description 7
- 238000004590 computer program Methods 0.000 description 4
- 238000004364 calculation method Methods 0.000 description 3
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- 230000002401 inhibitory effect Effects 0.000 description 1
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- 229910044991 metal oxide Inorganic materials 0.000 description 1
- 150000004706 metal oxides Chemical class 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/60—Circuit arrangements or systems for wireless supply or distribution of electric power responsive to the presence of foreign objects, e.g. detection of living beings
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/10—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling
- H02J50/12—Circuit arrangements or systems for wireless supply or distribution of electric power using inductive coupling of the resonant type
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J50/00—Circuit arrangements or systems for wireless supply or distribution of electric power
- H02J50/70—Circuit arrangements or systems for wireless supply or distribution of electric power involving the reduction of electric, magnetic or electromagnetic leakage fields
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03H—IMPEDANCE NETWORKS, e.g. RESONANT CIRCUITS; RESONATORS
- H03H7/00—Multiple-port networks comprising only passive electrical elements as network components
- H03H7/01—Frequency selective two-port networks
- H03H7/0115—Frequency selective two-port networks comprising only inductors and capacitors
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/02—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries for charging batteries from ac mains by converters
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Computer Networks & Wireless Communication (AREA)
- Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
公开了一种无线充电电路、无线充电方法、设备和***，所述无线充电电路包括依次连接的振荡电路和检测电路；所述振荡电路包括串联的激励电压源、全桥电路和LC串联电路，LC串联电路包括串联的电感和谐振电容，且所述LC串联电路在发生阻尼振荡时，向检测电路输出阻尼振荡的谐振电压信号；所述检测电路包括比较模块和处理模块，比较模块用于接收谐振电压信号，并转换成数字方波信号；处理模块用于接收并获取谐振电压衰减波形中的满足第一预设条件的波峰数、波谷数、或波峰数和波谷数总和，以及根据这些参数确定品质因数Q，以及根据所述Q值对异物进行检测并得到检测结果，本方案实现了利用Q值对异物的检测，同时还提高了测量的精确度。
Description
PCT国内申请，说明书已公开。
Claims (24)
- PCT国内申请，权利要求书已公开。
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010089150.XA CN111211598B (zh) | 2020-02-12 | 2020-02-12 | 一种无线充电电路、无线充电方法、设备和*** |
| CN202010089150X | 2020-02-12 | ||
| PCT/CN2020/125829 WO2021159764A1 (zh) | 2020-02-12 | 2020-11-02 | 一种无线充电电路、无线充电方法、设备和*** |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN114144957A true CN114144957A (zh) | 2022-03-04 |
| CN114144957B CN114144957B (zh) | 2024-02-09 |
Family
ID=70786820
Family Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211429541.7A Pending CN115663969A (zh) | 2020-02-12 | 2020-02-12 | 一种无线充电电路、无线充电方法、设备和*** |
| CN202010089150.XA Active CN111211598B (zh) | 2020-02-12 | 2020-02-12 | 一种无线充电电路、无线充电方法、设备和*** |
| CN202080051492.0A Active CN114144957B (zh) | 2020-02-12 | 2020-11-02 | 一种无线充电电路、无线充电方法、设备和*** |
Family Applications Before (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202211429541.7A Pending CN115663969A (zh) | 2020-02-12 | 2020-02-12 | 一种无线充电电路、无线充电方法、设备和*** |
| CN202010089150.XA Active CN111211598B (zh) | 2020-02-12 | 2020-02-12 | 一种无线充电电路、无线充电方法、设备和*** |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US20220393515A1 (zh) |
| EP (1) | EP4092862A4 (zh) |
| JP (1) | JP7459271B2 (zh) |
| KR (1) | KR20220139377A (zh) |
| CN (3) | CN115663969A (zh) |
| BR (1) | BR112022015944A2 (zh) |
| WO (1) | WO2021159764A1 (zh) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117639299A (zh) * | 2023-11-16 | 2024-03-01 | 浙江地芯引力科技有限公司 | 异物检测电路、芯片、无线充电***和异物检测方法 |
Families Citing this family (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115663969A (zh) * | 2020-02-12 | 2023-01-31 | 华为数字能源技术有限公司 | 一种无线充电电路、无线充电方法、设备和*** |
| CN113972703B (zh) * | 2020-07-21 | 2024-07-09 | 北京小米移动软件有限公司 | 一种无线充电方法、装置、终端及存储介质 |
| CN111736006B (zh) * | 2020-08-07 | 2020-11-24 | 成都市易冲半导体有限公司 | 一种应用于无线充电线圈rms电流便捷检测方法 |
| CN114189063A (zh) * | 2020-09-11 | 2022-03-15 | 登丰微电子股份有限公司 | 金属异物侦测装置 |
| CN112737148B (zh) * | 2020-12-23 | 2023-07-14 | 歌尔股份有限公司 | 异物检测电路、无线充电***及异物检测方法 |
| CN114221451A (zh) * | 2021-02-07 | 2022-03-22 | 伏达半导体(合肥)有限公司 | 用于无线电能传输***的品质因素确定设备和方法 |
| US20220385113A1 (en) * | 2021-05-28 | 2022-12-01 | Nuvolta Technologies (Hefei) Co., Ltd. | Foreign Object Detection Apparatus and Method for Wireless Power Transfer System |
| CN113933592B (zh) * | 2021-10-12 | 2023-04-04 | 无锡硅动力微电子股份有限公司 | 一种高精度q值快速检测电路及方法 |
| CN113824495B (zh) * | 2021-11-23 | 2022-04-01 | 深圳维普创新科技有限公司 | 一种计算Q-Factor的电路、方法、装置及电子设备 |
| CN114252702A (zh) * | 2021-11-23 | 2022-03-29 | 深圳维普创新科技有限公司 | 一种品质因数的检测电路、方法、装置及电子设备 |
| CN116610192B (zh) * | 2022-02-09 | 2024-04-05 | 荣耀终端有限公司 | 一种电子设备及判断手写笔在位的方法 |
| CN117154862A (zh) * | 2022-06-01 | 2023-12-01 | 深圳英集芯科技股份有限公司 | 无线充电方法和无线充电电路及相关装置 |
| CN117129763A (zh) * | 2023-04-24 | 2023-11-28 | 荣耀终端有限公司 | 手写笔偏移检测方法及电子设备 |
| CN116247837B (zh) * | 2023-05-08 | 2023-10-20 | 荣耀终端有限公司 | 无线充电***、方法和相关设备 |
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| US20100013321A1 (en) * | 2008-07-15 | 2010-01-21 | Seiko Epson Corporation | Power receiving control device, power receiving device, and electronic apparatus |
| CN106685029A (zh) * | 2017-01-11 | 2017-05-17 | 天地（常州）自动化股份有限公司 | 一种无线充电装置及其金属异物检测方法 |
| CN107204699A (zh) * | 2016-03-15 | 2017-09-26 | 飞思卡尔半导体公司 | 谐振储能网络的q因子的确定 |
| KR20180003810A (ko) * | 2016-07-01 | 2018-01-10 | 엘지이노텍 주식회사 | 이물질 검출 방법 및 그를 위한 장치 및 시스템 |
| CN107947395A (zh) * | 2017-11-10 | 2018-04-20 | 维沃移动通信有限公司 | 一种金属异物的检测方法及无线充电器 |
| US20180337557A1 (en) * | 2017-05-17 | 2018-11-22 | Apple Inc. | Wireless Charging System With Object Recognition |
| CN108923552A (zh) * | 2018-07-27 | 2018-11-30 | 浙江泰米电子科技有限公司 | 一种无线充电异物检测电路及方法 |
| CN109038850A (zh) * | 2018-06-25 | 2018-12-18 | 华为技术有限公司 | 一种检测无线充电***中金属异物的装置、设备及方法 |
| CN110391697A (zh) * | 2015-10-23 | 2019-10-29 | 联发科技股份有限公司 | 执行异物检测的方法和装置 |
| CN111211598A (zh) * | 2020-02-12 | 2020-05-29 | 华为技术有限公司 | 一种无线充电电路、无线充电方法、设备和*** |
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| WO2003077531A2 (en) * | 2002-03-08 | 2003-09-18 | Inductive Signature Technologies, Inc. | Normalization of inductive vehicle detector outputs |
| AU2003278839A1 (en) * | 2002-09-17 | 2004-04-08 | Inductive Signature Technologies, Inc | Vehicle speed estimation using inductive vehicle detection systems |
| JP6029278B2 (ja) | 2011-12-21 | 2016-11-24 | ソニー株式会社 | 受電装置及び非接触電力伝送システム |
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| US9939539B2 (en) * | 2014-04-04 | 2018-04-10 | Texas Instruments Incorporated | Wireless power receiver and/or foreign object detection by a wireless power transmitter |
| CN207939234U (zh) * | 2018-03-07 | 2018-10-02 | 深圳市华昌德电子有限公司 | 一种低功耗qi无线充电电路 |
| CN111313569A (zh) * | 2018-12-11 | 2020-06-19 | 恩智浦美国有限公司 | 无线充电***中的异物检测电路的q因子确定 |
-
2020
- 2020-02-12 CN CN202211429541.7A patent/CN115663969A/zh active Pending
- 2020-02-12 CN CN202010089150.XA patent/CN111211598B/zh active Active
- 2020-11-02 EP EP20918236.9A patent/EP4092862A4/en active Pending
- 2020-11-02 KR KR1020227031267A patent/KR20220139377A/ko not_active Application Discontinuation
- 2020-11-02 CN CN202080051492.0A patent/CN114144957B/zh active Active
- 2020-11-02 BR BR112022015944A patent/BR112022015944A2/pt unknown
- 2020-11-02 WO PCT/CN2020/125829 patent/WO2021159764A1/zh unknown
- 2020-11-02 JP JP2022548938A patent/JP7459271B2/ja active Active
-
2022
- 2022-08-12 US US17/886,724 patent/US20220393515A1/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20100013321A1 (en) * | 2008-07-15 | 2010-01-21 | Seiko Epson Corporation | Power receiving control device, power receiving device, and electronic apparatus |
| CN110391697A (zh) * | 2015-10-23 | 2019-10-29 | 联发科技股份有限公司 | 执行异物检测的方法和装置 |
| CN107204699A (zh) * | 2016-03-15 | 2017-09-26 | 飞思卡尔半导体公司 | 谐振储能网络的q因子的确定 |
| KR20180003810A (ko) * | 2016-07-01 | 2018-01-10 | 엘지이노텍 주식회사 | 이물질 검출 방법 및 그를 위한 장치 및 시스템 |
| CN106685029A (zh) * | 2017-01-11 | 2017-05-17 | 天地（常州）自动化股份有限公司 | 一种无线充电装置及其金属异物检测方法 |
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| CN107947395A (zh) * | 2017-11-10 | 2018-04-20 | 维沃移动通信有限公司 | 一种金属异物的检测方法及无线充电器 |
| CN109038850A (zh) * | 2018-06-25 | 2018-12-18 | 华为技术有限公司 | 一种检测无线充电***中金属异物的装置、设备及方法 |
| CN108923552A (zh) * | 2018-07-27 | 2018-11-30 | 浙江泰米电子科技有限公司 | 一种无线充电异物检测电路及方法 |
| CN111211598A (zh) * | 2020-02-12 | 2020-05-29 | 华为技术有限公司 | 一种无线充电电路、无线充电方法、设备和*** |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117639299A (zh) * | 2023-11-16 | 2024-03-01 | 浙江地芯引力科技有限公司 | 异物检测电路、芯片、无线充电***和异物检测方法 |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021159764A1 (zh) | 2021-08-19 |
| JP7459271B2 (ja) | 2024-04-01 |
| KR20220139377A (ko) | 2022-10-14 |
| CN111211598B (zh) | 2022-11-22 |
| US20220393515A1 (en) | 2022-12-08 |
| CN115663969A (zh) | 2023-01-31 |
| CN114144957B (zh) | 2024-02-09 |
| CN111211598A (zh) | 2020-05-29 |
| BR112022015944A2 (pt) | 2022-10-04 |
| JP2023514241A (ja) | 2023-04-05 |
| EP4092862A1 (en) | 2022-11-23 |
| EP4092862A4 (en) | 2023-07-12 |
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